Comments (5)
As discussed in Centrifugo Telegram group: the root cause here was that history_ttl
is 2160h
(90 days). It's greater than default history_meta_ttl
value used by Centrifugo (which is 720h
i.e. 30 days). History Meta TTL must be greater than history TTL to avoid errors like this.
The documentation contained old description of defaults used in Centrifugo v4 (previously history meta ttl was 90 days by default). Fixed this and added more clarifications on a proper configuration in centrifugal/centrifugal.dev@51fb304
Need to think more whether it's possible to avoid such situations - we can at least validate ttl values on start.
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Hello, @FZambia!
I was getting same error.
Did what you suggested - increased history_meta_ttl
to be greater than history_ttl
but still getting this error.
Maybe you can give me some advice on what to do with this?
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@VanderY hello, I think you are getting errors for already existing streams. Fixing configuration won't help with them automatically, only help with newly created streams. You are using Redis engine right? If yes - then theoretically flushing state in Redis may help to get rid of such errors. If you are using auto recovery and using Centrifugo right on client side – then flushing Redis state should not cause a serious issue for clients as the state must be loaded from your main database since clients will receive insufficient state advices. But I suggest testing this scenario and decide whether it's acceptable. Also, make sure Redis is only used for Centrifugo, otherwise you may need to clean up only Centrifugo keys.
If you need to keep information in Redis then the only way here is manual migration of keys. But using Centrifugo as persistent storage is not a recommended pattern - so I believe it's not your use case.
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Found one more related bug which could result into similar issues with Memory Engine – fixed in centrifugal/centrifuge#366
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Config validation and fix above are now part of v5.3.0. I also created an issue in the underlying Centrifuge library to return an error during publish, this is not very relevant to Centrifugo though.
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